Basically i went into my c. Func and i turned Hightilght tone priority on and my ISO was going 2oo, 4oo, 8oo, 16oo
instead of the norm.

I done a google search, apparently it is to allow photographers (landscape and stuff like that) to take images of High contrast scenes without blowing the highlights (larger dynamic range) at higher ISO

good question...someone answer please lol...i took some photos not to long ago with the highlight tone priority ...didnt see a difference...ive heard the highlight tone priority causes more noise...i dont know though

Highlight tone priority expands the dynamic range of the sensor upwards to capture more highlights, at the expense of noise in the shadows at the other end of the sensor's dynamic range. It's very, very useful for shots where you want to preserve detail in bright highlights, and is not restricted to JPEG. Canon uses the oo's to denote that you're in HTP mode when it displays the ISO, probably just so that you don't forget and mess up later shots. As and example, I used it to get this shot: